What FPS will I get in Undertale at 1440p?

At 1440p Ultra native, expect around 0 FPS. With DLSS Quality you can push higher.

Does GeForce RTX 5080 AORUS MASTER support DLSS or FSR in Undertale?

Undertale does not currently support upscalers.

Yes — the GeForce RTX 5080 AORUS MASTER runs Undertale at approximately 0 FPS at 1080p Ultra (native, no upscaling).

✕No — Too Weak

Expected: 0 FPS @ 1080p Ultra (native). This GeForce RTX 5080 AORUS MASTER is currently $1768.33 at MemoryC ↗